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Poster: Administrator, Curator, or StaffSeattle Community Media Date: Mar 20, 2012 9:01am
Forum: forums Subject: Re: Incorrect length of videos in new streamer?

Thanks for looking into this, Tracy. It seems to be a new thing - starting mid-week last week. We are using the Open Media System on Drupal. I like that the content pushes back up to Archive, but if we need to turn that off, we can. I don't think that is why it keeps re-queueing files, though.

We also keep having an issue with the MPEG2's not coming back to us completely. We have to re-download about 30% of the time to get the whole file. I wonder if maybe cron is too often and cuts it off, but I would think once something was downloading, it would finish.

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Poster: Administrator, Curator, or Stafftracey pooh Date: Mar 20, 2012 12:03pm
Forum: forums Subject: Re: Incorrect length of videos in new streamer?

ok, i believe i've sort of "fixed"
http://www.archive.org/details/scm-24682-andrewrossphoenixlessonsfromth

it's either my new theora/ogg video maker process (not quite live yet, but hopefully by end of week) *or* due to the uploading system clobbering the source .mpg over and over and... 8-)

-tracey

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Poster: Administrator, Curator, or StaffSeattle Community Media Date: Mar 20, 2012 1:36pm
Forum: forums Subject: Re: Incorrect length of videos in new streamer?

Will we need to do something to correct all of these, or will it happen on its own when the new video maker process is complete?

I think this is probably affecting everything that has been uploaded (50 videos or so, probably) from Seattle Community Media in the last week.

If it helps for investigating, one of my producers said that the audio just slowly gets out of sync as the video progresses.

Thanks!
Erin

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Poster: Administrator, Curator, or Stafftracey pooh Date: Mar 20, 2012 4:57pm
Forum: forums Subject: Re: Incorrect length of videos in new streamer?

ok, something is definitely kind of wacky with these three .mpeg files.
(if you mplayer the .mpeg, the onscreen end time is far off, but plays correctly. so i think it's breaking our current "demux-transcode-A/V-separately-remux" scheme for ogv right now. i'm updating that to be more like our current h.264 deriving where we transcode the audio and video directly together inside ffmpeg.

the good thing is that i think my updated ffmpeg and .ogv creation mostly fixes the problem as far as i can tell. i'm remaking the .ogv w/ my test setup for the other 2 of 3 items.

we can rederive all the .ogv for your items once i've done some more testing/qualification and make the new .ogv creation path live.

and i guess you were saying the audio and video start to get out of sync, presumably watching the ogv with a modern version of firefox and a [video] tag....

--tracey

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Poster: Administrator, Curator, or Stafftracey pooh Date: Mar 20, 2012 2:29pm
Forum: forums Subject: Re: Incorrect length of videos in new streamer?

well, this is getting feature creep, and better to have first hand accounting for something like that. what video supposedly has A/V drift?

first of all, we need to figure out what part is repeat uploading and mangling things. that should fix the ogg-vs-mp4 timing issue....

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Poster: Administrator, Curator, or StaffSeattle Community Media Date: Mar 21, 2012 2:22pm
Forum: forums Subject: Re: Incorrect length of videos in new streamer?

OK... I'll start by turning off the automatic update content on cron runs.

I have an option to turn off/on:

Update metadata on archive.org for already transferred files when nodes are updated? (If this option is checked, all item metadata will be resent to archive.org when their associated nodes are updated.)

Hopefully this will help with some of the re-uploading? Are you aware of any other Drupal/Archive configurations that are helpful?

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Poster: Administrator, Curator, or Stafftracey pooh Date: Mar 27, 2012 5:19pm
Forum: forums Subject: Re: Incorrect length of videos in new streamer?

hi again, Erin.
btw, just wanted to mention that maybe a week ago, after updating how we produce our Ogg Video derivatives, I remade every single seattle item that had been made prior to that.

so i think the timings should be all set
(then we've still got that email thread issue with item clobbering 8-)
-tracey

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